Peter Robertson1 Linda Lawton2 John Irvine3

1, Queens University, Belfast, , United Kingdom
2, Robert Gordon University, Aberdeen, , United Kingdom
3, University of St Andrews, School of Chemistry, St Andrews, , United Kingdom

Cyanobacterial toxins produced and released by cyanobacteria around the world have been well-documented. The incidence of cyanobacterial blooms in freshwaters, including drinking water reservoirs, has increased over the past few decades due to rising nutrient levels. Of most significant concern are the hepatotoxic microcystins and nodularins. Microcystins are a family of hepatotoxic peptides produced by freshwater cyanobacteria. Nodularins, produced by the cyanobacterium Nodularia spumigena, are structurally and biologically similar to microcystins and both groups of toxins are among the commonly found cyanobacterial toxins detected in water. TiO2 photocatalysis has proven to be an effective technology for removal of both these class of compounds from water. In this presentation recent advances in the application of TiO2 photocatalysis for the removal of cyanotoxins are considered.